Cuvette



FIG. 1 is a top view of the design;

FIG. 2 is a bottom view of the design;

FIG. 3 is a first side view of the design;

FIG. 4 is a second side view of the design;

FIG. 5 is a third side view of the design;

FIG. 6 is a top perspective view of the design; and,

FIG. 7 is a bottom perspective view of the design. 

CLAIM The ornamental design for a cuvette, as shown and described. 